HVAC Components & Review

Front

What is the function of a thermostat in an HVAC system?

Back

Distributes the signal (R) from the 24v transformer to the proper destination

Front

What is the purpose of a hot surface igniter in a gas furnace?

Back

Glows Orange to light the flame

Front

What does a thermal roll-out sensor do in an HVAC system?

Back

Opens if flames are detected outside of the exchanger

Front

What is the function of a 24 Volt Transformer in an HVAC system?

Back

Converts primary voltage of 120 or 240 to 24 volts

Front

What is the purpose of an auxiliary heater in a heat pump?

Back

Used to supplement heat in cold temperatures

Front

What does a breaker do in an HVAC system?

Back

Disconnects the unit when too many amps pass through thus protecting wires and the system

Front

What is the function of an overflow switch in an HVAC system?

Back

Protects the unit from condensation overflow

Front

What does a defrost board do in an HVAC system?

Back

Sends signals to switch reversing valve for defrosting

Front

What is the purpose of a hard start capacitor in an HVAC system?

Back

Used to assist normal capacitor in the startup of compressor

Front

What does an inducer fan motor do in an HVAC system?

Back

Ensures proper draft for flames in exchanger